The system design must be synthetically considered among the sampling frequency, system design index and implementing cost.
系统设计必须在采样频率、系统设计指标和实现成本之间进行综合考虑。
It is defined by PVT sampling analysis with high cost and related experience formulae with low accuracy at present, so it is difficult to define the saturation pressure.
目前主要通过PVT取样分析测定和相关经验公式来确定它，前者费用高，后者精度差，给饱和压力的确定带来困难。
Moreover sampling plan determined by the factors such as sampling risks was related to the process efficiencies including process quality control and inspection cost control.
而由抽样风险确定的抽样方案直接关系到加工过程质量控制和检验成本控制等加工效率问题。
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